A read-only audit that scans every variant and reports SKUs used by more than one variant, grouped with the sharing variants and products.
async def run(ctx): by_sku = {} for variant in await ctx.shopify.query(ALL_VARIANTS): if variant.sku:
How do you find duplicate SKUs on Shopify?
To find duplicate SKUs on Shopify, this template scans every variant in the catalog and reports each SKU that appears on more than one, grouped so you see exactly which variants and products share it. It is read-only by design: an audit, not a mutation, because deciding which duplicate is the real one is a judgment call about your own catalog, not something a script should guess. Empty SKUs are ignored here; the barcode and SKU presence checker covers those.
Duplicate SKUs corrupt everything that keys on them. Inventory syncs write to whichever variant they find first, feeds collapse two products into one listing, and the warehouse picks the wrong bin with full confidence. A spreadsheet dedupe catches the duplicates you have today; the scheduled audit catches the one a bulk import creates next month, and reports it before it has done a week of damage.
Last updated August 24, 2026
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